| Frequency: | Details: |
| 121.500 | Emergency Communications and Aid Service |
| 122.950 | DEPCOM - Helicopters at airfields with no ground radio facilities |
| 123.450 | Civil Air to Air Common |
| 135.475 | SAFTEYCOM - Aircraft at airfields with no ground radio facilities |
| 166.4375 | Helimed ERC (Emergency Reserve Channel) |